Acetal

Delrin (Acetal Homopolymer), Delrin Sheet, Delrin Rods

DELRIN® is a crystalline plastic which offers an excellent balance of properties that bridge the gap between metals and plastics.

DELRIN (Acetal Homopolymer)

DELRIN® is a crystalline plastic which offers an excellent balance of properties that bridge the gap between metals and plastics. DELRIN® possesses high tensile strength, creep resistance and toughness. It also exhibits low moisture absorption. It is chemically resistant to hydrocarbons, solvents and neutral chemicals. These properties along with its fatigue endurance make DELRIN® ideal for many industrial applications.

Good dimensional stability

Low moisture absorption
DELRIN® can operate in wet environments with little effect on performance or dimensions.

Excellent machinability

High fatigue endurance

High strength and stiffness properties

Superior impact and creep resistance

Chemical resistance to fuels and solvents

Natural grade is FDA, NSF and USDA compliant

Good wear and abrasion properties
With its low coefficient of friction and hard and resilient surface, DELRIN® is the material of choice in many wear applications.

DELRIN®s overall combination of physical, tribological and environmental properties make it ideal for many industrial wear and mechanical applications. Parts exposed to a moist or wet environment, such as pump and valve components, are especially appropriate. Other common uses for DELRIN® include gears, bearings, bushings, rollers, fittings and electrical insulator parts.

Typical Property Values

PROPERTIES

ASTMTest Method

Units

Delrin® 150

Physical

Density

D792

lbs/in3

0.0513

Specific Gravity

D792

g/cc

1.42

Water Absorption

@24 hours, 73°F

D570

%

0.25

@Saturation, 73°F

D570

%

0.9

Mechanical

Tensile Strength @ Yield, 73°F

D638

psi

9,000

Tensile Modulus

D639

psi

350,000

Elongation @ Break, 73°F

D638

%

25

Flexural Strength, 73°F

D790

psi

11,500

Flexural Modulus, 73°F

D790

psi

420,000

Compressive Strength

D695

psi

5,200

Izod Impact Strength, 73°F

D256

ft-lbs/in

1.5

Rockwell Hardness, 73°F

D785

M (R) Scale

M 94 (120)

Shore Hardness

-

D Scale

-

Wear Factor Against Steel, 40 psi, 50 fpm

D3702

55 x 10-10

Static Coefficient of Friction

D3702

-

-

Dynamic Coefficient of Friction, 40 psi, 50 fpm

D3702

-

0.2

Thermal

Heat Deflection Temperature

@ 66 psi

D648

°F

336

@264 psi

D648

°F

257

Coefficient of Linear Thermal Expansion

D696

in/in/°F

6.8 x 10-5

Maximum Servicing Temperature

Intermittent

-

°F

300

Long Term

UL746B

°F

185

Specific Heat

-

BTU/lb-°F

0.35

Thermal Conductivity

-

-

-

Vicat Softening Point

-

°F

-

Melting Point

D2133

°F

347

Flammability

UL94

HB (1.47)

Electrical

Surface Resistivity

D257

ohm/square

-

Volume Resistivity

D257

ohm-cm

1015

Dielectric Strength

D149

V/mil

500

Dielectric Constant

@ 60 Hz, 73°F, 50% RH

D150

-

3.7

@ 1 MHz

D150

-

3.7

@ 20 GHz

D150

-

-

@ 30 GHz

D150

-

-

Dissipation Factor, @ 60 HZ, 73°F

D150

-

0.005

This information is only to assist and advise you on current technical knowledge and is given without obligation or liability. All trade and patent rights should be observed. All rights reserved. Data obtained from extruded shapes material. TECAMID™ - Ensinger Industries, Inc.